Die-stock.



A. M. BERKSHIRE.

DIE STOCK. APPLICATION FILED APR.30, 1912.

I Patented Oct. 28, 1913.

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wi/bneooeo DIE STOCK.

APPLICATION FILED APR. 30, 1912.

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W R Memes COLUMBIA PMNOORAPH C0,. WASHINGTON UNITED STATES PATENT OFFIC.

ALBERT MILTON BERKSHIRE, OF 'UI-IRICHSVILLE, OHIO.

DIE-STOCK.

To all whom, 2'25 may concern Be it known that I, ALBERT M. BERKSHIRE, a citizen of the United States, residing at Uhrichsville, in the county of Tuscarawas and State of Ohio, have invented new and useful Improvements in Die-Stocks, of which the following is a specification.

This invention relates to die stocks and the object of the invention is to provide a simple and eihcient device of this character which is adjustable to hold a plurality of different size dies and which may be operated in either direction by a ratchet movement.

Further objects of this invention will appear as the following specific description is read in connection with the accompanying drawing, which forms a part of this application, and in which Figure l is an elevation taken from one side of the device. Fig. 2 is a similar view taken from the opposite side of the device. Fig. 3 is a detail elevation with the die attaching plate removed and one of the die holders turned to inoperative position. Fig. I is a horizontal section. Fig. 5 is a detail vertical transverse section.

Referring more particularly to the draw ings, 1 represents a circular body having a central bore 2 passing therethrough and attached to one end of which is a ratchet wheel or disk 3 to which is secured the die receiving frame or box 1. This frame or box is preferably formed integral with the body or ratchet wheel and forms separate receptacles 5 and 6 for the reception of different size dies. Pivotally mounted on the box and adapted to operate within the kerfs 7 formed in the corners thereof, are die latching or locking plates 8, each provided with a thumb piece 9 by which the plates may be operated. These plates when in operative position extend across the corners of the receptacle 5 and eifectually hold the die in position therein. When the die is lo- Speoification of Letters Patent.

Application filed. April 30, 1912.

Patented Oct 28, 1913. Serial No. 6%,086.

cated in the receptacle 6, a washer-like plate 10 is employed which is held in adjusted position on the top of the box by means of thumb screws 11 which operate in slots 12.

Revolubly mounted upon the body is an arm 13 which carries the handle socket mem bers 14, the lateral flanges 15 of which are cutaway to form' an opening 16, through which the ends of the ratchet dogs 17 are adapted to pass. These ratchet dogs are pivoted between the ar1n'13 and the members 14 on opposite sides of the ratchet wheel and are connected together at one end by a rod 18. Either of the pawls are held in opera-- tive position by means of a spring 19.

The bodyfl is exteriorly threaded and mounted thereon is a sleeve 20 having a collar 21, through which pass set screws 22 adapted to engage the pipeso that when the body is rotated, the pipe will be fed to'the die by force. Suitable handles may be mounted in the handle receiving members, as will be readily understood.

What is claimed is In a device of the class described, a body having a central bore, and a die receiving socket, a ratchet wheel integral with the body, a handle receiving member journaled on the body, double pawls carried by the handle receiving member and arranged on opposite sides of the ratchet wheel for connecting said handle receiving member to the ratchet wheel, means for connecting the pawls and a single spring for holding either end of the pawls in engagement with the ratchet wheel whereby the body may be rotated in either direction.

In testimony whereof I affix my signature in presence of two witnesses.

ALBERT MILTON BERKSHIRE.

Witnesses:

JOSHUA GOODING, L. S. WINSCH.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D; C. 

